#include <config.h>
#include <stdio.h>
-#ifdef STDC_HEADERS
-#include <stdlib.h>
-#endif
#include "lisp.h"
#include "frame.h"
#include "window.h"
#include "coding.h"
#include "process.h"
#include "region-cache.h"
+#include "fontset.h"
#ifdef HAVE_X_WINDOWS
#include "xterm.h"
#endif
+#ifdef WINDOWSNT
+#include "w32term.h"
+#endif
#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))
Lisp_Object Qwindow_scroll_functions, Vwindow_scroll_functions;
Lisp_Object Qredisplay_end_trigger_functions;
Lisp_Object Qinhibit_point_motion_hooks;
-Lisp_Object QCeval, Qwhen;
+Lisp_Object QCeval, Qwhen, QCfile, QCdata;
Lisp_Object Qfontified;
/* Functions called to fontify regions of text. */
/* Names of text properties relevant for redisplay. */
-Lisp_Object Qdisplay, Qrelative_width, Qwidth, Qalign_to;
-extern Lisp_Object Qface, Qinvisible, Qimage;
+Lisp_Object Qdisplay, Qrelative_width, Qalign_to;
+extern Lisp_Object Qface, Qinvisible, Qimage, Qwidth;
/* Symbols used in text property values. */
Lisp_Object Qspace, QCalign_to, QCrelative_width, QCrelative_height;
-Lisp_Object Qleft_margin, Qright_margin, Qspace_width, Qheight, Qraise;
+Lisp_Object Qleft_margin, Qright_margin, Qspace_width, Qraise;
+Lisp_Object Qmargin;
+extern Lisp_Object Qheight;
/* Non-nil means highlight trailing whitespace. */
/* Maximum buffer size for which to display line numbers. */
-static int line_number_display_limit;
+Lisp_Object Vline_number_display_limit;
/* line width to consider when repostioning for line number display */
specifying a fraction of the available height, or an integer
specifying a number of lines. */
-static Lisp_Object Vmax_mini_window_height;
+Lisp_Object Vmax_mini_window_height;
+
+/* Non-zero means messages should be displayed with truncated
+ lines instead of being continued. */
+
+int message_truncate_lines;
+Lisp_Object Qmessage_truncate_lines;
+
+/* Non-zero means we want a hollow cursor in windows that are not
+ selected. Zero means there's no cursor in such windows. */
+
+int cursor_in_non_selected_windows;
/* A scratch glyph row with contents used for generating truncation
glyphs. Also used in direct_output_for_insert. */
int trace_redisplay_p;
#endif
+/* Non-zero means automatically scroll windows horizontally to make
+ point visible. */
+
+int automatic_hscrolling_p;
+
+/* A list of symbols, one for each supported image type. */
+
+Lisp_Object Vimage_types;
+
/* Value returned from text property handlers (see below). */
enum prop_handled
static enum prop_handled handle_face_prop P_ ((struct it *));
static enum prop_handled handle_invisible_prop P_ ((struct it *));
static enum prop_handled handle_display_prop P_ ((struct it *));
+static enum prop_handled handle_composition_prop P_ ((struct it *));
static enum prop_handled handle_overlay_change P_ ((struct it *));
static enum prop_handled handle_fontified_prop P_ ((struct it *));
{&Qface, FACE_PROP_IDX, handle_face_prop},
{&Qdisplay, DISPLAY_PROP_IDX, handle_display_prop},
{&Qinvisible, INVISIBLE_PROP_IDX, handle_invisible_prop},
+ {&Qcomposition, COMPOSITION_PROP_IDX, handle_composition_prop},
{NULL, 0, NULL}
};
\f
/* Function prototypes. */
+static int single_display_prop_intangible_p P_ ((Lisp_Object));
+static void ensure_echo_area_buffers P_ ((void));
static struct glyph_row *row_containing_pos P_ ((struct window *, int,
struct glyph_row *,
struct glyph_row *));
static void insert_left_trunc_glyphs P_ ((struct it *));
static struct glyph_row *get_overlay_arrow_glyph_row P_ ((struct window *));
static void extend_face_to_end_of_line P_ ((struct it *));
-static void append_space P_ ((struct it *, int));
+static int append_space P_ ((struct it *, int));
static void make_cursor_line_fully_visible P_ ((struct window *));
static int try_scrolling P_ ((Lisp_Object, int, int, int, int));
static int trailing_whitespace_p P_ ((int));
static void display_mode_line P_ ((struct window *, enum face_id,
Lisp_Object));
static int display_mode_element P_ ((struct it *, int, int, int, Lisp_Object));
-static char *decode_mode_spec P_ ((struct window *, char, int, int));
+static char *decode_mode_spec P_ ((struct window *, int, int, int));
static void display_menu_bar P_ ((struct window *));
static int display_count_lines P_ ((int, int, int, int, int *));
static int display_string P_ ((unsigned char *, Lisp_Object, Lisp_Object,
static int next_element_from_string P_ ((struct it *));
static int next_element_from_c_string P_ ((struct it *));
static int next_element_from_buffer P_ ((struct it *));
+static int next_element_from_composition P_ ((struct it *));
static int next_element_from_image P_ ((struct it *));
static int next_element_from_stretch P_ ((struct it *));
static void load_overlay_strings P_ ((struct it *));
struct display_pos *));
static void reseat_to_string P_ ((struct it *, unsigned char *,
Lisp_Object, int, int, int, int));
-static int charset_at_position P_ ((struct text_pos));
static enum move_it_result move_it_in_display_line_to P_ ((struct it *,
int, int, int));
void move_it_vertically_backward P_ ((struct it *, int));
/* Return the next character from STR which is MAXLEN bytes long.
Return in *LEN the length of the character. This is like
STRING_CHAR_AND_LENGTH but never returns an invalid character. If
- we find one, we return a `?', but with the length of the illegal
+ we find one, we return a `?', but with the length of the invalid
character. */
static INLINE int
c = STRING_CHAR_AND_LENGTH (str, maxlen, *len);
if (!CHAR_VALID_P (c, 1))
/* We may not change the length here because other places in Emacs
- don't use this function, i.e. they silently accept illegal
+ don't use this function, i.e. they silently accept invalid
characters. */
c = '?';
xassert (CHARPOS (*newpos) >= CHARPOS (pos));
if (STRING_MULTIBYTE (string))
- *newpos = string_pos_nchars_ahead (pos, CHARPOS (*newpos) - CHARPOS (pos),
- string);
+ *newpos = string_pos_nchars_ahead (pos, string,
+ CHARPOS (*newpos) - CHARPOS (pos));
else
BYTEPOS (*newpos) = CHARPOS (*newpos);
}
-/* Return the charset of the character at position POS in
- current_buffer. */
-
-static int
-charset_at_position (pos)
- struct text_pos pos;
-{
- int c, multibyte_p;
- unsigned char *p = BYTE_POS_ADDR (BYTEPOS (pos));
-
- multibyte_p = !NILP (current_buffer->enable_multibyte_characters);
- if (multibyte_p)
- {
- int maxlen = ((BYTEPOS (pos) >= GPT_BYTE ? ZV_BYTE : GPT_BYTE)
- - BYTEPOS (pos));
- int len;
- c = string_char_and_length (p, maxlen, &len);
- }
- else
- c = *p;
-
- return CHAR_CHARSET (c);
-}
-
-
\f
/***********************************************************************
Lisp form evaluation
bzero (it, sizeof *it);
it->current.overlay_string_index = -1;
it->current.dpvec_index = -1;
- it->charset = CHARSET_ASCII;
it->base_face_id = base_face_id;
/* The window in which we iterate over current_buffer: */
it->w = w;
it->f = XFRAME (w->frame);
+ /* Extra space between lines (on window systems only). */
+ if (base_face_id == DEFAULT_FACE_ID
+ && FRAME_WINDOW_P (it->f))
+ {
+ if (NATNUMP (current_buffer->extra_line_spacing))
+ it->extra_line_spacing = XFASTINT (current_buffer->extra_line_spacing);
+ else if (it->f->extra_line_spacing > 0)
+ it->extra_line_spacing = it->f->extra_line_spacing;
+ }
+
/* If realized faces have been removed, e.g. because of face
attribute changes of named faces, recompute them. */
if (FRAME_FACE_CACHE (it->f)->used == 0)
it->dpvec = NULL;
it->current.dpvec_index = -1;
+ it->add_overlay_start = 0;
do
{
for (p = it_props; p->handler; ++p)
{
handled = p->handler (it);
-
+
if (handled == HANDLED_RECOMPUTE_PROPS)
break;
else if (handled == HANDLED_RETURN)
/* Run the hook functions. */
args[0] = Qfontification_functions;
args[1] = pos;
- Frun_hook_with_args (make_number (2), args);
+ Frun_hook_with_args (2, args);
/* Return HANDLED_RECOMPUTE_PROPS only if function fontified
something. This avoids an endless loop if they failed to
}
it->face_id = new_face_id;
- it->charset = CHARSET_ASCII;
return HANDLED_NORMALLY;
}
if (before_p)
pos = string_pos (IT_STRING_CHARPOS (*it) - 1, it->string);
else
- pos = string_pos (IT_STRING_CHARPOS (*it) + 1, it->string);
+ /* For composition, we must check the character after the
+ composition. */
+ pos = (it->what == IT_COMPOSITION
+ ? string_pos (IT_STRING_CHARPOS (*it) + it->cmp_len, it->string)
+ : string_pos (IT_STRING_CHARPOS (*it) + 1, it->string));
/* Get the face for ASCII, or unibyte. */
face_id
{
unsigned char *p = XSTRING (it->string)->data + BYTEPOS (pos);
int rest = STRING_BYTES (XSTRING (it->string)) - BYTEPOS (pos);
- int c, len, charset;
+ int c, len;
+ struct face *face = FACE_FROM_ID (it->f, face_id);
c = string_char_and_length (p, rest, &len);
- charset = CHAR_CHARSET (c);
- if (charset != CHARSET_ASCII)
- face_id = FACE_FOR_CHARSET (it->f, face_id, charset);
+ face_id = FACE_FOR_CHAR (it->f, face, c);
}
}
else
pos = it->current.pos;
if (before_p)
- DEC_TEXT_POS (pos);
+ DEC_TEXT_POS (pos, it->multibyte_p);
else
- INC_TEXT_POS (pos);
-
+ {
+ if (it->what == IT_COMPOSITION)
+ /* For composition, we must check the position after the
+ composition. */
+ pos.charpos += it->cmp_len, pos.bytepos += it->len;
+ else
+ INC_TEXT_POS (pos, it->multibyte_p);
+ }
/* Determine face for CHARSET_ASCII, or unibyte. */
face_id = face_at_buffer_position (it->w,
CHARPOS (pos),
suitable for unibyte text if current_buffer is unibyte. */
if (it->multibyte_p)
{
- int charset = charset_at_position (pos);
- if (charset != CHARSET_ASCII)
- face_id = FACE_FOR_CHARSET (it->f, face_id, charset);
+ int c = FETCH_MULTIBYTE_CHAR (CHARPOS (pos));
+ struct face *face = FACE_FROM_ID (it->f, face_id);
+ face_id = FACE_FOR_CHAR (it->f, face, c);
}
}
XSETFASTINT (charpos, IT_STRING_CHARPOS (*it));
prop = Fget_text_property (charpos, Qinvisible, it->string);
- if (!NILP (prop))
+ if (!NILP (prop)
+ && IT_STRING_CHARPOS (*it) < it->end_charpos)
{
handled = HANDLED_RECOMPUTE_PROPS;
prop = Fget_char_property (pos, Qinvisible, it->window);
/* If we are on invisible text, skip over it. */
- if (TEXT_PROP_MEANS_INVISIBLE (prop))
+ if (TEXT_PROP_MEANS_INVISIBLE (prop)
+ && IT_CHARPOS (*it) < it->end_charpos)
{
/* Record whether we have to display an ellipsis for the
invisible text. */
= TEXT_PROP_MEANS_INVISIBLE_WITH_ELLIPSIS (prop);
handled = HANDLED_RECOMPUTE_PROPS;
+ it->add_overlay_start = IT_CHARPOS (*it);
/* Loop skipping over invisible text. The loop is left at
ZV or with IT on the first char being visible again. */
return HANDLED_NORMALLY;
space_or_image_found_p = 0;
- if (CONSP (prop) && CONSP (XCAR (prop)))
+ if (CONSP (prop)
+ && CONSP (XCAR (prop))
+ && !EQ (Qmargin, XCAR (XCAR (prop))))
{
+ /* A list of sub-properties. */
while (CONSP (prop))
{
if (handle_single_display_prop (it, XCAR (prop), object, position))
}
-/* Value is the position of the end of the `display' property stating
+/* Value is the position of the end of the `display' property starting
at START_POS in OBJECT. */
static struct text_pos
{
Lisp_Object end;
struct text_pos end_pos;
-
- /* Characters having this form of property are not displayed, so
- we have to find the end of the property. */
- end = Fnext_single_property_change (make_number (start_pos.charpos),
- Qdisplay, object, Qnil);
- if (NILP (end))
- {
- /* A nil value of `end' means there are no changes of the
- property to the end of the buffer or string. */
- if (it->current.overlay_string_index >= 0)
- end_pos.charpos = XSTRING (it->string)->size;
- else
- end_pos.charpos = it->end_charpos;
- }
- else
- end_pos.charpos = XFASTINT (end);
- if (STRINGP (it->string))
+ end = next_single_char_property_change (make_number (CHARPOS (start_pos)),
+ Qdisplay, object, Qnil);
+ CHARPOS (end_pos) = XFASTINT (end);
+ if (STRINGP (object))
compute_string_pos (&end_pos, start_pos, it->string);
else
- end_pos.bytepos = CHAR_TO_BYTE (end_pos.charpos);
+ BYTEPOS (end_pos) = CHAR_TO_BYTE (XFASTINT (end));
return end_pos;
}
{
Lisp_Object value;
int space_or_image_found_p = 0;
-
Lisp_Object form;
/* If PROP is a list of the form `(when FORM . VALUE)', FORM is
struct gcpro gcpro1;
struct text_pos end_pos, pt;
- end_pos = display_prop_end (it, object, *position);
GCPRO1 (form);
+ end_pos = display_prop_end (it, object, *position);
/* Temporarily set point to the end position, and then evaluate
the form. This makes `(eolp)' work as FORM. */
- CHARPOS (pt) = PT;
- BYTEPOS (pt) = PT_BYTE;
- TEMP_SET_PT_BOTH (CHARPOS (end_pos), BYTEPOS (end_pos));
+ if (BUFFERP (object))
+ {
+ CHARPOS (pt) = PT;
+ BYTEPOS (pt) = PT_BYTE;
+ TEMP_SET_PT_BOTH (CHARPOS (end_pos), BYTEPOS (end_pos));
+ }
+
form = eval_form (form);
- TEMP_SET_PT_BOTH (CHARPOS (pt), BYTEPOS (pt));
+
+ if (BUFFERP (object))
+ TEMP_SET_PT_BOTH (CHARPOS (pt), BYTEPOS (pt));
UNGCPRO;
}
&& EQ (XCAR (prop), Qraise)
&& CONSP (XCDR (prop)))
{
-#ifdef HAVE_WINDOW_SYSTEM
/* `(raise FACTOR)'. */
if (FRAME_TERMCAP_P (it->f) || FRAME_MSDOS_P (it->f))
return 0;
+#ifdef HAVE_WINDOW_SYSTEM
value = XCAR (XCDR (prop));
if (NUMBERP (value))
{
struct face *face = FACE_FROM_ID (it->f, it->face_id);
it->voffset = - (XFLOATINT (value)
- * (face->font->ascent + face->font->descent));
+ * (FONT_HEIGHT (face->font)));
}
#endif /* HAVE_WINDOW_SYSTEM */
}
else if (!it->string_from_display_prop_p)
{
- /* `(left-margin VALUE)' or `(right-margin VALUE)
- or `(nil VALUE)' or VALUE. */
+ /* `((margin left-margin) VALUE)' or `((margin right-margin)
+ VALUE) or `((margin nil) VALUE)' or VALUE. */
Lisp_Object location, value;
struct text_pos start_pos;
int valid_p;
/* Characters having this form of property are not displayed, so
we have to find the end of the property. */
- space_or_image_found_p = 1;
start_pos = *position;
*position = display_prop_end (it, object, start_pos);
+ value = Qnil;
/* Let's stop at the new position and assume that all
text properties change there. */
it->stop_charpos = position->charpos;
- if (CONSP (prop)
- && !EQ (XCAR (prop), Qspace)
- && !EQ (XCAR (prop), Qimage))
+ location = Qunbound;
+ if (CONSP (prop) && CONSP (XCAR (prop)))
{
- location = XCAR (prop);
+ Lisp_Object tem;
+
value = XCDR (prop);
+ if (CONSP (value))
+ value = XCAR (value);
+
+ tem = XCAR (prop);
+ if (EQ (XCAR (tem), Qmargin)
+ && (tem = XCDR (tem),
+ tem = CONSP (tem) ? XCAR (tem) : Qnil,
+ (NILP (tem)
+ || EQ (tem, Qleft_margin)
+ || EQ (tem, Qright_margin))))
+ location = tem;
}
- else
+
+ if (EQ (location, Qunbound))
{
location = Qnil;
value = prop;
}
#ifdef HAVE_WINDOW_SYSTEM
- if (FRAME_TERMCAP_P (it->f) || FRAME_MSDOS_P (it->f))
+ if (FRAME_TERMCAP_P (it->f))
valid_p = STRINGP (value);
else
valid_p = (STRINGP (value)
|| NILP (location))
&& valid_p)
{
+ space_or_image_found_p = 1;
+
/* Save current settings of IT so that we can restore them
when we are finished with the glyph property value. */
push_it (it);
it->object = NILP (object) ? it->w->buffer : object;
it->method = next_element_from_image;
- /* Say that we don't have consumed the characters with
+ /* Say that we haven't consumed the characters with
`display' property yet. The call to pop_it in
set_iterator_to_next will clean this up. */
*position = start_pos;
}
#endif /* HAVE_WINDOW_SYSTEM */
}
+ else
+ /* Invalid property or property not supported. Restore
+ the position to what it was before. */
+ *position = start_pos;
}
return space_or_image_found_p;
}
+/* Check if PROP is a display sub-property value whose text should be
+ treated as intangible. */
+
+static int
+single_display_prop_intangible_p (prop)
+ Lisp_Object prop;
+{
+ /* Skip over `when FORM'. */
+ if (CONSP (prop) && EQ (XCAR (prop), Qwhen))
+ {
+ prop = XCDR (prop);
+ if (!CONSP (prop))
+ return 0;
+ prop = XCDR (prop);
+ }
+
+ if (!CONSP (prop))
+ return 0;
+
+ /* Skip over `margin LOCATION'. If LOCATION is in the margins,
+ we don't need to treat text as intangible. */
+ if (EQ (XCAR (prop), Qmargin))
+ {
+ prop = XCDR (prop);
+ if (!CONSP (prop))
+ return 0;
+
+ prop = XCDR (prop);
+ if (!CONSP (prop)
+ || EQ (XCAR (prop), Qleft_margin)
+ || EQ (XCAR (prop), Qright_margin))
+ return 0;
+ }
+
+ return CONSP (prop) && EQ (XCAR (prop), Qimage);
+}
+
+
+/* Check if PROP is a display property value whose text should be
+ treated as intangible. */
+
+int
+display_prop_intangible_p (prop)
+ Lisp_Object prop;
+{
+ if (CONSP (prop)
+ && CONSP (XCAR (prop))
+ && !EQ (Qmargin, XCAR (XCAR (prop))))
+ {
+ /* A list of sub-properties. */
+ while (CONSP (prop))
+ {
+ if (single_display_prop_intangible_p (XCAR (prop)))
+ return 1;
+ prop = XCDR (prop);
+ }
+ }
+ else if (VECTORP (prop))
+ {
+ /* A vector of sub-properties. */
+ int i;
+ for (i = 0; i < XVECTOR (prop)->size; ++i)
+ if (single_display_prop_intangible_p (XVECTOR (prop)->contents[i]))
+ return 1;
+ }
+ else
+ return single_display_prop_intangible_p (prop);
+
+ return 0;
+}
+
+\f
+/***********************************************************************
+ `composition' property
+ ***********************************************************************/
+
+/* Set up iterator IT from `composition' property at its current
+ position. Called from handle_stop. */
+
+static enum prop_handled
+handle_composition_prop (it)
+ struct it *it;
+{
+ Lisp_Object prop, string;
+ int pos, pos_byte, end;
+ enum prop_handled handled = HANDLED_NORMALLY;
+
+ if (STRINGP (it->string))
+ {
+ pos = IT_STRING_CHARPOS (*it);
+ pos_byte = IT_STRING_BYTEPOS (*it);
+ string = it->string;
+ }
+ else
+ {
+ pos = IT_CHARPOS (*it);
+ pos_byte = IT_BYTEPOS (*it);
+ string = Qnil;
+ }
+
+ /* If there's a valid composition and point is not inside of the
+ composition (in the case that the composition is from the current
+ buffer), draw a glyph composed from the composition components. */
+ if (find_composition (pos, -1, &pos, &end, &prop, string)
+ && COMPOSITION_VALID_P (pos, end, prop)
+ && (STRINGP (it->string) || (PT <= pos || PT >= end)))
+ {
+ int id = get_composition_id (pos, pos_byte, end - pos, prop, string);
+
+ if (id >= 0)
+ {
+ it->method = next_element_from_composition;
+ it->cmp_id = id;
+ it->cmp_len = COMPOSITION_LENGTH (prop);
+ /* For a terminal, draw only the first character of the
+ components. */
+ it->c = COMPOSITION_GLYPH (composition_table[id], 0);
+ it->len = (STRINGP (it->string)
+ ? string_char_to_byte (it->string, end)
+ : CHAR_TO_BYTE (end)) - pos_byte;
+ it->stop_charpos = end;
+ handled = HANDLED_RETURN;
+ }
+ }
+
+ return handled;
+}
+
+
\f
/***********************************************************************
Overlay strings
struct overlay_entry
{
+ Lisp_Object overlay;
Lisp_Object string;
int priority;
int after_string_p;
handle_overlay_change (it)
struct it *it;
{
- /* Overlays are handled in current_buffer only. */
- if (STRINGP (it->string))
- return HANDLED_NORMALLY;
+ if (!STRINGP (it->string) && get_overlay_strings (it))
+ return HANDLED_RECOMPUTE_PROPS;
else
- return (get_overlay_strings (it)
- ? HANDLED_RECOMPUTE_PROPS
- : HANDLED_NORMALLY);
+ return HANDLED_NORMALLY;
}
SET_TEXT_POS (it->current.string_pos, -1, -1);
it->n_overlay_strings = 0;
it->method = next_element_from_buffer;
+
+ /* If we're at the end of the buffer, record that we have
+ processed the overlay strings there already, so that
+ next_element_from_buffer doesn't try it again. */
+ if (IT_CHARPOS (*it) >= it->end_charpos)
+ it->overlay_strings_at_end_processed_p = 1;
}
else
{
comparison function for qsort in load_overlay_strings. Overlay
strings for the same position are sorted so that
- 1. All after-strings come in front of before-strings.
+ 1. All after-strings come in front of before-strings, except
+ when they come from the same overlay.
2. Within after-strings, strings are sorted so that overlay strings
from overlays with higher priorities come first.
int result;
if (entry1->after_string_p != entry2->after_string_p)
- /* Let after-strings appear in front of before-strings. */
- result = entry1->after_string_p ? -1 : 1;
+ {
+ /* Let after-strings appear in front of before-strings if
+ they come from different overlays. */
+ if (EQ (entry1->overlay, entry2->overlay))
+ result = entry1->after_string_p ? 1 : -1;
+ else
+ result = entry1->after_string_p ? -1 : 1;
+ }
else if (entry1->after_string_p)
/* After-strings sorted in order of decreasing priority. */
result = entry2->priority - entry1->priority;
strings that have already been loaded by previous calls to this
function.
+ IT->add_overlay_start contains an additional overlay start
+ position to consider for taking overlay strings from, if non-zero.
+ This position comes into play when the overlay has an `invisible'
+ property, and both before and after-strings. When we've skipped to
+ the end of the overlay, because of its `invisible' property, we
+ nevertheless want its before-string to appear.
+ IT->add_overlay_start will contain the overlay start position
+ in this case.
+
Overlay strings are sorted so that after-string strings come in
front of before-string strings. Within before and after-strings,
strings are sorted by overlay priority. See also function
} \
\
entries[n].string = (STRING); \
+ entries[n].overlay = (OVERLAY); \
priority = Foverlay_get ((OVERLAY), Qpriority); \
- entries[n].priority \
- = INTEGERP (priority) ? XFASTINT (priority) : 0; \
+ entries[n].priority = INTEGERP (priority) ? XINT (priority) : 0; \
entries[n].after_string_p = (AFTER_P); \
++n; \
} \
while (0)
/* Process overlay before the overlay center. */
- for (ov = current_buffer->overlays_before;
- CONSP (ov);
- ov = XCDR (ov))
+ for (ov = current_buffer->overlays_before; CONSP (ov); ov = XCDR (ov))
{
overlay = XCAR (ov);
xassert (OVERLAYP (overlay));
/* Skip this overlay if it doesn't start or end at IT's current
position. */
- if (end != IT_CHARPOS (*it) && start != IT_CHARPOS (*it))
+ if (end != IT_CHARPOS (*it)
+ && start != IT_CHARPOS (*it)
+ && it->add_overlay_start != IT_CHARPOS (*it))
continue;
/* Skip this overlay if it doesn't apply to IT->w. */
continue;
/* If overlay has a non-empty before-string, record it. */
- if (start == IT_CHARPOS (*it)
+ if ((start == IT_CHARPOS (*it)
+ || start == it->add_overlay_start)
&& (str = Foverlay_get (overlay, Qbefore_string), STRINGP (str))
&& XSTRING (str)->size)
RECORD_OVERLAY_STRING (overlay, str, 0);
}
/* Process overlays after the overlay center. */
- for (ov = current_buffer->overlays_after;
- CONSP (ov);
- ov = XCDR (ov))
+ for (ov = current_buffer->overlays_after; CONSP (ov); ov = XCDR (ov))
{
overlay = XCAR (ov);
xassert (OVERLAYP (overlay));
/* Skip this overlay if it doesn't start or end at IT's current
position. */
- if (end != IT_CHARPOS (*it) && start != IT_CHARPOS (*it))
+ if (end != IT_CHARPOS (*it)
+ && start != IT_CHARPOS (*it)
+ && it->add_overlay_start != IT_CHARPOS (*it))
continue;
/* Skip this overlay if it doesn't apply to IT->w. */
continue;
/* If overlay has a non-empty before-string, record it. */
- if (start == IT_CHARPOS (*it)
+ if ((start == IT_CHARPOS (*it)
+ || start == it->add_overlay_start)
&& (str = Foverlay_get (overlay, Qbefore_string), STRINGP (str))
&& XSTRING (str)->size)
RECORD_OVERLAY_STRING (overlay, str, 0);
#undef RECORD_OVERLAY_STRING
/* Sort entries. */
- qsort (entries, n, sizeof *entries, compare_overlay_entries);
+ if (n)
+ qsort (entries, n, sizeof *entries, compare_overlay_entries);
/* Record the total number of strings to process. */
it->n_overlay_strings = n;
j = it->current.overlay_string_index;
while (i < OVERLAY_STRING_CHUNK_SIZE && j < n)
it->overlay_strings[i++] = entries[j++].string;
-
+
CHECK_IT (it);
}
&& indented_beyond_p (IT_CHARPOS (*it), IT_BYTEPOS (*it),
it->selective))
visible_p = 0;
-#ifdef USE_TEXT_PROPERTIES
else
{
Lisp_Object prop;
- prop = Fget_char_property (IT_CHARPOS (*it), Qinvisible, it->window);
+ prop = Fget_char_property (make_number (IT_CHARPOS (*it)),
+ Qinvisible, it->window);
if (TEXT_PROP_MEANS_INVISIBLE (prop))
visible_p = 0;
}
-#endif /* USE_TEXT_PROPERTIES */
/* Back one more newline if the current one is invisible. */
if (!visible_p)
forward_to_next_line_start (it);
/* Position on the newline if we should. */
- if (on_newline_p && IT_CHARPOS (*it) > BEGV)
+ if (on_newline_p
+ && IT_CHARPOS (*it) > BEGV
+ && FETCH_BYTE (IT_BYTEPOS (*it) - 1) == '\n')
{
--IT_CHARPOS (*it);
IT_BYTEPOS (*it) = CHAR_TO_BYTE (IT_CHARPOS (*it));
bzero (&it->current, sizeof it->current);
it->current.overlay_string_index = -1;
it->current.dpvec_index = -1;
- it->charset = CHARSET_ASCII;
xassert (charpos >= 0);
/* Use the setting of MULTIBYTE if specified. */
function pointer `method' used here turns out to be faster than
using a sequence of if-statements. */
int success_p = (*it->method) (it);
- int charset;
if (it->what == IT_CHARACTER)
{
}
else
{
- unsigned char work[4], *str;
- int len = CHAR_STRING (it->c, work, str);
+ unsigned char str[MAX_MULTIBYTE_LENGTH];
+ int len;
int i;
GLYPH escape_glyph;
else
escape_glyph = FAST_MAKE_GLYPH ('\\', 0);
+ if (SINGLE_BYTE_CHAR_P (it->c))
+ str[0] = it->c, len = 1;
+ else
+ len = CHAR_STRING (it->c, str);
+
for (i = 0; i < len; i++)
{
XSETINT (it->ctl_chars[i * 4], escape_glyph);
}
}
- /* Adjust face id if charset changes. There are no charset
- changes in unibyte text because Emacs' charsets are not
- applicable there. */
+ /* Adjust face id for a multibyte character. There are no
+ multibyte character in unibyte text. */
if (it->multibyte_p
&& success_p
- && (charset = CHAR_CHARSET (it->c),
- charset != it->charset))
+ && FRAME_WINDOW_P (it->f))
{
- it->charset = charset;
- it->face_id = FACE_FOR_CHARSET (it->f, it->face_id, charset);
+ struct face *face = FACE_FROM_ID (it->f, it->face_id);
+ it->face_id = FACE_FOR_CHAR (it->f, face, it->c);
}
}
xassert (IT_BYTEPOS (*it) == CHAR_TO_BYTE (IT_CHARPOS (*it)));
}
}
+ else if (it->method == next_element_from_composition)
+ {
+ xassert (it->cmp_id >= 0 && it ->cmp_id < n_compositions);
+ if (STRINGP (it->string))
+ {
+ IT_STRING_BYTEPOS (*it) += it->len;
+ IT_STRING_CHARPOS (*it) += it->cmp_len;
+ it->method = next_element_from_string;
+ goto consider_string_end;
+ }
+ else
+ {
+ IT_BYTEPOS (*it) += it->len;
+ IT_CHARPOS (*it) += it->cmp_len;
+ it->method = next_element_from_buffer;
+ }
+ }
else if (it->method == next_element_from_c_string)
{
/* Current display element of IT is from a C string. */
strings. */
++it->current.dpvec_index;
- /* Restore face and charset of the iterator to what they were
- before the display vector entry (these entries may contain
- faces, and of course characters of different charsets). */
+ /* Restore face of the iterator to what they were before the
+ display vector entry (these entries may contain faces). */
it->face_id = it->saved_face_id;
- it->charset = FACE_FROM_ID (it->f, it->face_id)->charset;
if (it->dpvec + it->current.dpvec_index == it->dpend)
{
g = XFASTINT (it->dpvec[it->current.dpvec_index]);
it->c = FAST_GLYPH_CHAR (g);
- it->len = CHAR_LEN (it->c);
+ it->len = CHAR_BYTES (it->c);
/* The entry may contain a face id to use. Such a face id is
the id of a Lisp face, not a realized face. A face id of
if (face_id >= 0)
{
it->face_id = face_id;
- it->charset = CHARSET_ASCII;
}
}
}
entry. This function Fills IT with the first glyph from the
ellipsis if an ellipsis is to be displayed. */
-static void
+static int
next_element_from_ellipsis (it)
struct it *it;
{
- if (it->dp && VECTORP (DISP_INVIS_VECTOR (it->dp)))
- {
- /* Use the display table definition for `...'. Invalid glyphs
- will be handled by the method returning elements from dpvec. */
- struct Lisp_Vector *v = XVECTOR (DISP_INVIS_VECTOR (it->dp));
- it->dpvec_char_len = it->len;
- it->dpvec = v->contents;
- it->dpend = v->contents + v->size;
- it->current.dpvec_index = 0;
- it->method = next_element_from_display_vector;
- get_next_display_element (it);
- }
- else if (it->selective_display_ellipsis_p)
+ if (it->selective_display_ellipsis_p)
{
- /* Use default `...' which is stored in default_invis_vector. */
- it->dpvec_char_len = it->len;
- it->dpvec = default_invis_vector;
- it->dpend = default_invis_vector + 3;
- it->current.dpvec_index = 0;
- it->method = next_element_from_display_vector;
- get_next_display_element (it);
+ if (it->dp && VECTORP (DISP_INVIS_VECTOR (it->dp)))
+ {
+ /* Use the display table definition for `...'. Invalid glyphs
+ will be handled by the method returning elements from dpvec. */
+ struct Lisp_Vector *v = XVECTOR (DISP_INVIS_VECTOR (it->dp));
+ it->dpvec_char_len = it->len;
+ it->dpvec = v->contents;
+ it->dpend = v->contents + v->size;
+ it->current.dpvec_index = 0;
+ it->method = next_element_from_display_vector;
+ }
+ else
+ {
+ /* Use default `...' which is stored in default_invis_vector. */
+ it->dpvec_char_len = it->len;
+ it->dpvec = default_invis_vector;
+ it->dpend = default_invis_vector + 3;
+ it->current.dpvec_index = 0;
+ it->method = next_element_from_display_vector;
+ }
}
+ else
+ reseat_at_next_visible_line_start (it, 1);
+
+ return get_next_display_element (it);
}
else
{
it->overlay_strings_at_end_processed_p = 1;
- overlay_strings_follow_p
- = get_overlay_strings (it);
+ overlay_strings_follow_p = get_overlay_strings (it);
}
if (overlay_strings_follow_p)
/* Get the next character, maybe multibyte. */
p = BYTE_POS_ADDR (IT_BYTEPOS (*it));
- if (it->multibyte_p)
+ if (it->multibyte_p && !ASCII_BYTE_P (*p))
{
int maxlen = ((IT_BYTEPOS (*it) >= GPT_BYTE ? ZV_BYTE : GPT_BYTE)
- IT_BYTEPOS (*it));
IT_BYTEPOS (*it) + 1,
it->selective))
{
- next_element_from_ellipsis (it);
+ success_p = next_element_from_ellipsis (it);
it->dpvec_char_len = -1;
}
}
/* A value of selective == -1 means that everything from the
CR to the end of the line is invisible, with maybe an
ellipsis displayed for it. */
- next_element_from_ellipsis (it);
+ success_p = next_element_from_ellipsis (it);
it->dpvec_char_len = -1;
}
}
}
/* Value is zero if end of buffer reached. */
- xassert (!success_p || it->len > 0);
+ xassert (!success_p || it->what != IT_CHARACTER || it->len > 0);
return success_p;
}
}
+/* Deliver a composition display element. The iterator IT is already
+ filled with composition information (done in
+ handle_composition_prop). Value is always 1. */
+
+static int
+next_element_from_composition (it)
+ struct it *it;
+{
+ it->what = IT_COMPOSITION;
+ it->position = (STRINGP (it->string)
+ ? it->current.string_pos
+ : it->current.pos);
+ return 1;
+}
+
+
\f
/***********************************************************************
Moving an iterator without producing glyphs
- when we stopped at a line end, i.e. a newline or a CR and selective
display is on. */
-enum move_it_result
+static enum move_it_result
move_it_in_display_line_to (it, to_charpos, to_x, op)
struct it *it;
int to_charpos, to_x, op;
struct it *it;
int start_charpos, end_charpos;
{
-#ifdef USE_TEXT_PROPERTIES
Lisp_Object prop, limit;
int invisible_found_p;
invisible_found_p = 1;
else
{
- limit = Fnext_single_property_change (make_number (start_charpos),
- Qinvisible,
- Fcurrent_buffer (),
- make_number (end_charpos));
+ limit = next_single_char_property_change (make_number (start_charpos),
+ Qinvisible, Qnil,
+ make_number (end_charpos));
invisible_found_p = XFASTINT (limit) < end_charpos;
}
return invisible_found_p;
-
-#else /* not USE_TEXT_PROPERTIES */
- return 0;
-#endif /* not USE_TEXT_PROPERTIES */
}
***********************************************************************/
+/* Add a message with format string FORMAT and arguments ARG1 and ARG2
+ to *Messages*. */
+
+void
+add_to_log (format, arg1, arg2)
+ char *format;
+ Lisp_Object arg1, arg2;
+{
+ Lisp_Object args[3];
+ Lisp_Object msg, fmt;
+ char *buffer;
+ int len;
+ struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
+
+ fmt = msg = Qnil;
+ GCPRO4 (fmt, msg, arg1, arg2);
+
+ args[0] = fmt = build_string (format);
+ args[1] = arg1;
+ args[2] = arg2;
+ msg = Fformat (3, args);
+
+ len = STRING_BYTES (XSTRING (msg)) + 1;
+ buffer = (char *) alloca (len);
+ strcpy (buffer, XSTRING (msg)->data);
+
+ message_dolog (buffer, len - 1, 1, 0);
+ UNGCPRO;
+}
+
+
/* Output a newline in the *Messages* buffer if "needs" one. */
void
{
int i, c, nbytes;
unsigned char *msg = (unsigned char *) m;
- unsigned char *str, work[4];
+ unsigned char str[MAX_MULTIBYTE_LENGTH];
/* Convert a single-byte string to multibyte
for the *Message* buffer. */
for (i = 0; i < len; i++)
{
c = unibyte_char_to_multibyte (msg[i]);
- nbytes = CHAR_STRING (c, work, str);
- insert_1_both (work, 1, nbytes, 1, 0, 0);
+ nbytes = CHAR_STRING (c, str);
+ insert_1_both (str, 1, nbytes, 1, 0, 0);
}
}
else if (len)
char *m;
int len;
{
+ struct frame *sf = SELECTED_FRAME ();
message_enable_multibyte = multibyte;
if (noninteractive)
initialized yet. Error messages get reported properly by
cmd_error, so this must be just an informative message; toss it. */
else if (INTERACTIVE
- && selected_frame->glyphs_initialized_p
- && FRAME_MESSAGE_BUF (selected_frame))
+ && sf->glyphs_initialized_p
+ && FRAME_MESSAGE_BUF (sf))
{
Lisp_Object mini_window;
struct frame *f;
/* Get the frame containing the mini-buffer
that the selected frame is using. */
- mini_window = FRAME_MINIBUF_WINDOW (selected_frame);
+ mini_window = FRAME_MINIBUF_WINDOW (sf);
f = XFRAME (WINDOW_FRAME (XWINDOW (mini_window)));
FRAME_SAMPLE_VISIBILITY (f);
- if (FRAME_VISIBLE_P (selected_frame)
+ if (FRAME_VISIBLE_P (sf)
&& ! FRAME_VISIBLE_P (f))
Fmake_frame_visible (WINDOW_FRAME (XWINDOW (mini_window)));
Lisp_Object m;
int nbytes, multibyte;
{
+ struct frame *sf = SELECTED_FRAME ();
message_enable_multibyte = multibyte;
if (noninteractive)
initialized yet. Error messages get reported properly by
cmd_error, so this must be just an informative message; toss it. */
else if (INTERACTIVE
- && selected_frame->glyphs_initialized_p
- && FRAME_MESSAGE_BUF (selected_frame))
+ && sf->glyphs_initialized_p
+ && FRAME_MESSAGE_BUF (sf))
{
Lisp_Object mini_window;
Lisp_Object frame;
/* Get the frame containing the mini-buffer
that the selected frame is using. */
- mini_window = FRAME_MINIBUF_WINDOW (selected_frame);
+ mini_window = FRAME_MINIBUF_WINDOW (sf);
frame = XWINDOW (mini_window)->frame;
f = XFRAME (frame);
FRAME_SAMPLE_VISIBILITY (f);
- if (FRAME_VISIBLE_P (selected_frame)
+ if (FRAME_VISIBLE_P (sf)
&& !FRAME_VISIBLE_P (f))
Fmake_frame_visible (frame);
It may be larger than the selected frame, so we need
to use its buffer, not the selected frame's buffer. */
Lisp_Object mini_window;
- FRAME_PTR f;
+ struct frame *f, *sf = SELECTED_FRAME ();
/* Get the frame containing the minibuffer
that the selected frame is using. */
- mini_window = FRAME_MINIBUF_WINDOW (selected_frame);
+ mini_window = FRAME_MINIBUF_WINDOW (sf);
f = XFRAME (WINDOW_FRAME (XWINDOW (mini_window)));
/* A null message buffer means that the frame hasn't really been
on. It may be larger than the selected frame, so we need to
use its buffer, not the selected frame's buffer. */
Lisp_Object mini_window;
- struct frame *f;
+ struct frame *f, *sf = SELECTED_FRAME ();
/* Get the frame containing the mini-buffer
that the selected frame is using. */
- mini_window = FRAME_MINIBUF_WINDOW (selected_frame);
+ mini_window = FRAME_MINIBUF_WINDOW (sf);
f = XFRAME (WINDOW_FRAME (XWINDOW (mini_window)));
/* A null message buffer means that the frame hasn't really been
}
+/* Make sure echo area buffers in echo_buffers[] are life. If they
+ aren't, make new ones. */
+
+static void
+ensure_echo_area_buffers ()
+{
+ int i;
+
+ for (i = 0; i < 2; ++i)
+ if (!BUFFERP (echo_buffer[i])
+ || NILP (XBUFFER (echo_buffer[i])->name))
+ {
+ char name[30];
+ sprintf (name, " *Echo Area %d*", i);
+ echo_buffer[i] = Fget_buffer_create (build_string (name));
+ XBUFFER (echo_buffer[i])->truncate_lines = Qnil;
+ }
+}
+
+
/* Call FN with args A1..A5 with either the current or last displayed
echo_area_buffer as current buffer.
Value is what FN returns. */
static int
-with_echo_area_buffer (w, which, fn, a1, a2, a3, a4, a5)
+with_echo_area_buffer (w, which, fn, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10)
struct window *w;
int which;
int (*fn) ();
- int a1, a2, a3, a4, a5;
+ int a1, a2, a3, a4, a5, a6, a7, a8, a9, a10;
{
Lisp_Object buffer;
- int i, this_one, the_other, clear_buffer_p, rc;
+ int this_one, the_other, clear_buffer_p, rc;
int count = specpdl_ptr - specpdl;
/* If buffers aren't life, make new ones. */
- for (i = 0; i < 2; ++i)
- if (!BUFFERP (echo_buffer[i])
- || NILP (XBUFFER (echo_buffer[i])->name))
- {
- char name[30];
- sprintf (name, " *Echo Area %d*", i);
- echo_buffer[i] = Fget_buffer_create (build_string (name));
- }
+ ensure_echo_area_buffers ();
clear_buffer_p = 0;
if (!NILP (echo_area_buffer[this_one])
&& EQ (echo_area_buffer[this_one], echo_area_buffer[the_other]))
echo_area_buffer[this_one] = Qnil;
-
}
/* Choose a suitable buffer from echo_buffer[] is we don't
w->buffer = buffer;
set_marker_both (w->pointm, buffer, BEG, BEG_BYTE);
}
- current_buffer->truncate_lines = Qnil;
+
current_buffer->undo_list = Qt;
current_buffer->read_only = Qnil;
setup_echo_area_for_printing (multibyte_p)
int multibyte_p;
{
+ ensure_echo_area_buffers ();
+
if (!message_buf_print)
{
/* A message has been output since the last time we printed.
/* Raise the frame containing the echo area. */
if (minibuffer_auto_raise)
{
+ struct frame *sf = SELECTED_FRAME ();
Lisp_Object mini_window;
- mini_window = FRAME_MINIBUF_WINDOW (selected_frame);
+ mini_window = FRAME_MINIBUF_WINDOW (sf);
Fraise_frame (WINDOW_FRAME (XWINDOW (mini_window)));
}
+ message_log_maybe_newline ();
message_buf_print = 1;
}
- else if (current_buffer != XBUFFER (echo_area_buffer[0]))
- /* Someone switched buffers between print requests. */
- set_buffer_internal (XBUFFER (echo_area_buffer[0]));
+ else
+ {
+ if (NILP (echo_area_buffer[0]))
+ {
+ if (EQ (echo_area_buffer[1], echo_buffer[0]))
+ echo_area_buffer[0] = echo_buffer[1];
+ else
+ echo_area_buffer[0] = echo_buffer[0];
+ }
+
+ if (current_buffer != XBUFFER (echo_area_buffer[0]))
+ /* Someone switched buffers between print requests. */
+ set_buffer_internal (XBUFFER (echo_area_buffer[0]));
+ }
}
display_echo_area (w)
struct window *w;
{
- int i, no_message_p, window_height_changed_p;
+ int i, no_message_p, window_height_changed_p, count;
+
+ /* Temporarily disable garbage collections while displaying the echo
+ area. This is done because a GC can print a message itself.
+ That message would modify the echo area buffer's contents while a
+ redisplay of the buffer is going on, and seriously confuse
+ redisplay. */
+ count = inhibit_garbage_collection ();
/* If there is no message, we must call display_echo_area_1
nevertheless because it resizes the window. But we will have to
if (no_message_p)
echo_area_buffer[i] = Qnil;
-
+
+ unbind_to (count, Qnil);
return window_height_changed_p;
}
struct window *w;
{
Lisp_Object window;
- struct frame *f = XFRAME (w->frame);
struct text_pos start;
int window_height_changed_p = 0;
/* Do this before displaying, so that we have a large enough glyph
matrix for the display. */
- window_height_changed_p = resize_mini_window (w);
+ window_height_changed_p = resize_mini_window (w, 0);
/* Display. */
clear_glyph_matrix (w->desired_matrix);
}
-/* Resize mini-window W to fit the size of its contents. Value is
- non-zero if the window height has been changed. */
+/* Resize the echo area window to exactly the size needed for the
+ currently displayed message, if there is one. */
+
+void
+resize_echo_area_axactly ()
+{
+ if (BUFFERP (echo_area_buffer[0])
+ && WINDOWP (echo_area_window))
+ {
+ struct window *w = XWINDOW (echo_area_window);
+ int resized_p;
+
+ resized_p = with_echo_area_buffer (w, 0,
+ (int (*) ()) resize_mini_window,
+ w, 1);
+ if (resized_p)
+ {
+ ++windows_or_buffers_changed;
+ ++update_mode_lines;
+ redisplay_internal (0);
+ }
+ }
+}
+
+
+/* Resize mini-window W to fit the size of its contents. EXACT:P
+ means size the window exactly to the size needed. Otherwise, it's
+ only enlarged until W's buffer is empty. Value is non-zero if
+ the window height has been changed. */
int
-resize_mini_window (w)
+resize_mini_window (w, exact_p)
struct window *w;
+ int exact_p;
{
struct frame *f = XFRAME (w->frame);
int window_height_changed_p = 0;
xassert (MINI_WINDOW_P (w));
/* Nil means don't try to resize. */
- if (NILP (Vmax_mini_window_height))
+ if (NILP (Vmax_mini_window_height)
+ || (FRAME_X_P (f) && f->output_data.x == NULL))
return 0;
if (!FRAME_MINIBUF_ONLY_P (f))
max_height = min (total_height, max_height);
/* Find out the height of the text in the window. */
- move_it_to (&it, ZV, -1, -1, -1, MOVE_TO_POS);
- height = (unit - 1 + it.current_y + last_height) / unit;
- height = max (1, height);
+ if (it.truncate_lines_p)
+ height = 1;
+ else
+ {
+ last_height = 0;
+ move_it_to (&it, ZV, -1, -1, -1, MOVE_TO_POS);
+ if (it.max_ascent == 0 && it.max_descent == 0)
+ height = it.current_y + last_height;
+ else
+ height = it.current_y + it.max_ascent + it.max_descent;
+ height -= it.extra_line_spacing;
+ height = (height + unit - 1) / unit;
+ }
/* Compute a suitable window start. */
if (height > max_height)
/* Let it grow only, until we display an empty message, in which
case the window shrinks again. */
- if (height > XFASTINT (w->height)
- || BEGV == ZV)
+ if (height > XFASTINT (w->height))
{
- Lisp_Object old_selected_window;
-
- freeze_window_starts (f, height > XFASTINT (w->height));
- old_selected_window = selected_window;
- XSETWINDOW (selected_window, w);
- change_window_height (height - XFASTINT (w->height), 0);
- selected_window = old_selected_window;
- window_height_changed_p = 1;
+ int old_height = XFASTINT (w->height);
+ freeze_window_starts (f, 1);
+ grow_mini_window (w, height - XFASTINT (w->height));
+ window_height_changed_p = XFASTINT (w->height) != old_height;
+ }
+ else if (height < XFASTINT (w->height)
+ && (exact_p || BEGV == ZV))
+ {
+ int old_height = XFASTINT (w->height);
+ freeze_window_starts (f, 0);
+ shrink_mini_window (w);
+ window_height_changed_p = XFASTINT (w->height) != old_height;
}
}
cmd_error, so this must be just an informative message; toss it. */
else if (!noninteractive
&& INTERACTIVE
- && FRAME_MESSAGE_BUF (selected_frame)
&& !NILP (echo_area_buffer[0]))
- with_echo_area_buffer (0, 0, (int (*) ()) truncate_message_1, nchars);
+ {
+ struct frame *sf = SELECTED_FRAME ();
+ if (FRAME_MESSAGE_BUF (sf))
+ with_echo_area_buffer (0, 0, (int (*) ()) truncate_message_1, nchars);
+ }
}
!= !NILP (current_buffer->enable_multibyte_characters))
Fset_buffer_multibyte (message_enable_multibyte ? Qt : Qnil);
+ current_buffer->truncate_lines = message_truncate_lines ? Qt : Qnil;
+
/* Insert new message at BEG. */
TEMP_SET_PT_BOTH (BEG, BEG_BYTE);
/* Convert from single-byte to multi-byte. */
int i, c, n;
unsigned char *msg = (unsigned char *) s;
- unsigned char *str, work[4];
+ unsigned char str[MAX_MULTIBYTE_LENGTH];
/* Convert a single-byte string to multibyte. */
for (i = 0; i < nbytes; i++)
{
c = unibyte_char_to_multibyte (msg[i]);
- n = CHAR_STRING (c, work, str);
- insert_1_both (work, 1, n, 1, 0, 0);
+ n = CHAR_STRING (c, str);
+ insert_1_both (str, 1, n, 1, 0, 0);
}
}
else
}
-/* Redisplay the echo area of selected_frame. If UPDATE_FRAME_P is
- non-zero update selected_frame. Value is non-zero if the
+/* Redisplay the echo area of the selected frame. If UPDATE_FRAME_P
+ is non-zero update selected_frame. Value is non-zero if the
mini-windows height has been changed. */
static int
struct window *w;
struct frame *f;
int window_height_changed_p = 0;
+ struct frame *sf = SELECTED_FRAME ();
- mini_window = FRAME_MINIBUF_WINDOW (selected_frame);
+ mini_window = FRAME_MINIBUF_WINDOW (sf);
w = XWINDOW (mini_window);
f = XFRAME (WINDOW_FRAME (w));
if (!FRAME_VISIBLE_P (f) || !f->glyphs_initialized_p)
return 0;
+#ifdef HAVE_WINDOW_SYSTEM
/* When Emacs starts, selected_frame may be a visible terminal
frame, even if we run under a window system. If we let this
through, a message would be displayed on the terminal. */
-#ifdef HAVE_WINDOW_SYSTEM
- if (!inhibit_window_system && !FRAME_WINDOW_P (selected_frame))
+ if (EQ (selected_frame, Vterminal_frame)
+ && !NILP (Vwindow_system))
return 0;
#endif /* HAVE_WINDOW_SYSTEM */
}
else
{
- update_menu_bar (selected_frame, 1);
+ struct frame *sf = SELECTED_FRAME ();
+ update_menu_bar (sf, 1);
#ifdef HAVE_WINDOW_SYSTEM
- update_tool_bar (selected_frame, 1);
+ update_tool_bar (sf, 1);
#endif
}
/* Reuse f->desired_tool_bar_string, if possible. */
if (size < size_needed)
- f->desired_tool_bar_string = Fmake_string (make_number (size_needed), ' ');
+ f->desired_tool_bar_string = Fmake_string (make_number (size_needed),
+ make_number (' '));
else
{
props = list4 (Qdisplay, Qnil, Qmenu_item, Qnil);
{
int hscroll_margin, text_area_x, text_area_y;
int text_area_width, text_area_height;
- struct glyph_row *cursor_row = MATRIX_ROW (w->current_matrix,
- w->cursor.vpos);
+ struct glyph_row *current_cursor_row
+ = MATRIX_ROW (w->current_matrix, w->cursor.vpos);
+ struct glyph_row *desired_cursor_row
+ = MATRIX_ROW (w->desired_matrix, w->cursor.vpos);
+ struct glyph_row *cursor_row
+ = (desired_cursor_row->enabled_p
+ ? desired_cursor_row
+ : current_cursor_row);
window_box (w, TEXT_AREA, &text_area_x, &text_area_y,
&text_area_width, &text_area_height);
if ((XFASTINT (w->hscroll)
&& w->cursor.x < hscroll_margin)
- || (cursor_row->truncated_on_right_p
+ || (cursor_row->enabled_p
+ && cursor_row->truncated_on_right_p
&& (w->cursor.x > text_area_width - hscroll_margin)))
{
struct it it;
hscroll_windows (window)
Lisp_Object window;
{
- int hscrolled_p = hscroll_window_tree (window);
- if (hscrolled_p)
- clear_desired_matrices (XFRAME (WINDOW_FRAME (XWINDOW (window))));
+ int hscrolled_p;
+
+ if (automatic_hscrolling_p)
+ {
+ hscrolled_p = hscroll_window_tree (window);
+ if (hscrolled_p)
+ clear_desired_matrices (XFRAME (WINDOW_FRAME (XWINDOW (window))));
+ }
+ else
+ hscrolled_p = 0;
return hscrolled_p;
}
redisplay_internal (0);
}
+/* Return 1 if point moved out of or into a composition. Otherwise
+ return 0. PREV_BUF and PREV_PT are the last point buffer and
+ position. BUF and PT are the current point buffer and position. */
+
+int
+check_point_in_composition (prev_buf, prev_pt, buf, pt)
+ struct buffer *prev_buf, *buf;
+ int prev_pt, pt;
+{
+ int start, end;
+ Lisp_Object prop;
+ Lisp_Object buffer;
+
+ XSETBUFFER (buffer, buf);
+ /* Check a composition at the last point if point moved within the
+ same buffer. */
+ if (prev_buf == buf)
+ {
+ if (prev_pt == pt)
+ /* Point didn't move. */
+ return 0;
+
+ if (prev_pt > BUF_BEGV (buf) && prev_pt < BUF_ZV (buf)
+ && find_composition (prev_pt, -1, &start, &end, &prop, buffer)
+ && COMPOSITION_VALID_P (start, end, prop)
+ && start < prev_pt && end > prev_pt)
+ /* The last point was within the composition. Return 1 iff
+ point moved out of the composition. */
+ return (pt <= start || pt >= end);
+ }
+
+ /* Check a composition at the current point. */
+ return (pt > BUF_BEGV (buf) && pt < BUF_ZV (buf)
+ && find_composition (pt, -1, &start, &end, &prop, buffer)
+ && COMPOSITION_VALID_P (start, end, prop)
+ && start < pt && end > pt);
+}
/* Reconsider the setting of B->clip_changed which is displayed
in window W. */
&& w->current_matrix->zv == BUF_ZV (b)
&& w->current_matrix->begv == BUF_BEGV (b))
b->clip_changed = 0;
+
+ /* If display wasn't paused, and W is not a tool bar window, see if
+ point has been moved into or out of a composition. In that case,
+ we set b->clip_changed to 1 to force updating the screen. If
+ b->clip_changed has already been set to 1, we can skip this
+ check. */
+ if (!b->clip_changed
+ && BUFFERP (w->buffer) && !NILP (w->window_end_valid))
+ {
+ int pt;
+
+ if (w == XWINDOW (selected_window))
+ pt = BUF_PT (current_buffer);
+ else
+ pt = marker_position (w->pointm);
+
+ if ((w->current_matrix->buffer != XBUFFER (w->buffer)
+ || pt != XINT (w->last_point))
+ && check_point_in_composition (w->current_matrix->buffer,
+ XINT (w->last_point),
+ XBUFFER (w->buffer), pt))
+ b->clip_changed = 1;
+ }
}
struct text_pos tlbufpos, tlendpos;
int number_of_visible_frames;
int count;
+ struct frame *sf = SELECTED_FRAME ();
/* Non-zero means redisplay has to consider all windows on all
frames. Zero means, only selected_window is considered. */
fonts_changed_p = 0;
}
- if (! FRAME_WINDOW_P (selected_frame)
- && previous_terminal_frame != selected_frame)
+ if (! FRAME_WINDOW_P (sf)
+ && previous_terminal_frame != sf)
{
/* Since frames on an ASCII terminal share the same display
area, displaying a different frame means redisplay the whole
thing. */
windows_or_buffers_changed++;
- SET_FRAME_GARBAGED (selected_frame);
- XSETFRAME (Vterminal_frame, selected_frame);
+ SET_FRAME_GARBAGED (sf);
+ XSETFRAME (Vterminal_frame, sf);
}
- previous_terminal_frame = selected_frame;
+ previous_terminal_frame = sf;
/* Set the visible flags for all frames. Do this before checking
for resized or garbaged frames; they want to know if their frames
&& (current_buffer->clip_changed
|| XFASTINT (w->last_modified) < MODIFF
|| XFASTINT (w->last_overlay_modified) < OVERLAY_MODIFF)
- && resize_mini_window (w))
+ && resize_mini_window (w, 0))
{
/* Resized active mini-window to fit the size of what it is
showing if its contents might have changed. */
- MATRIX_ROW_START_BYTEPOS (row));
}
- increment_glyph_matrix_buffer_positions (w->current_matrix,
- this_line_vpos + 1,
- w->current_matrix->nrows,
- delta, delta_bytes);
+ increment_matrix_positions (w->current_matrix,
+ this_line_vpos + 1,
+ w->current_matrix->nrows,
+ delta, delta_bytes);
}
/* If this row displays text now but previously didn't,
FOR_EACH_FRAME (tail, frame)
{
struct frame *f = XFRAME (frame);
- if (FRAME_WINDOW_P (f) || f == selected_frame)
+ if (FRAME_WINDOW_P (f) || f == sf)
{
/* Mark all the scroll bars to be removed; we'll redeem
the ones we want when we redisplay their windows. */
}
}
}
- else if (FRAME_VISIBLE_P (selected_frame)
- && !FRAME_OBSCURED_P (selected_frame))
+ else if (FRAME_VISIBLE_P (sf)
+ && !FRAME_OBSCURED_P (sf))
redisplay_window (selected_window, 1);
if (consider_all_windows_p)
{
Lisp_Object tail;
+ struct frame *f;
+ int hscrolled_p;
pause = 0;
+ hscrolled_p = 0;
+ /* See if we have to hscroll. */
for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
- {
- struct frame *f;
+ if (FRAMEP (XCAR (tail)))
+ {
+ f = XFRAME (XCAR (tail));
+
+ if ((FRAME_WINDOW_P (f)
+ || f == sf)
+ && FRAME_VISIBLE_P (f)
+ && !FRAME_OBSCURED_P (f)
+ && hscroll_windows (f->root_window))
+ hscrolled_p = 1;
+ }
+
+ if (hscrolled_p)
+ goto retry;
+ for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
+ {
if (!FRAMEP (XCAR (tail)))
continue;
f = XFRAME (XCAR (tail));
- if ((FRAME_WINDOW_P (f) || f == selected_frame)
+ if ((FRAME_WINDOW_P (f) || f == sf)
&& FRAME_VISIBLE_P (f) && !FRAME_OBSCURED_P (f))
{
/* Mark all windows as to be updated. */
pause |= update_frame (f, 0, 0);
if (!pause)
{
- if (hscroll_windows (f->root_window))
- goto retry;
-
mark_window_display_accurate (f->root_window, 1);
if (frame_up_to_date_hook != 0)
(*frame_up_to_date_hook) (f);
}
else
{
- if (FRAME_VISIBLE_P (selected_frame)
- && !FRAME_OBSCURED_P (selected_frame))
+ if (FRAME_VISIBLE_P (sf)
+ && !FRAME_OBSCURED_P (sf))
{
- XWINDOW (selected_window)->must_be_updated_p = 1;
- pause = update_frame (selected_frame, 0, 0);
- if (!pause && hscroll_windows (selected_window))
+ if (hscroll_windows (selected_window))
goto retry;
+
+ XWINDOW (selected_window)->must_be_updated_p = 1;
+ pause = update_frame (sf, 0, 0);
}
else
pause = 0;
Lisp_Object mini_window;
struct frame *mini_frame;
- mini_window = FRAME_MINIBUF_WINDOW (selected_frame);
+ mini_window = FRAME_MINIBUF_WINDOW (sf);
mini_frame = XFRAME (WINDOW_FRAME (XWINDOW (mini_window)));
- if (mini_frame != selected_frame && FRAME_WINDOW_P (mini_frame))
+ if (mini_frame != sf && FRAME_WINDOW_P (mini_frame))
{
XWINDOW (mini_window)->must_be_updated_p = 1;
pause |= update_frame (mini_frame, 0, 0);
BUF_END_UNCHANGED (b) = BUF_Z (b) - BUF_GPT (b);
if (consider_all_windows_p)
- mark_window_display_accurate (FRAME_ROOT_WINDOW (selected_frame), 1);
+ mark_window_display_accurate (FRAME_ROOT_WINDOW (sf), 1);
else
{
XSETFASTINT (w->last_point, BUF_PT (b));
last_arrow_position = COERCE_MARKER (Voverlay_arrow_position);
last_arrow_string = Voverlay_arrow_string;
if (frame_up_to_date_hook != 0)
- (*frame_up_to_date_hook) (selected_frame);
+ (*frame_up_to_date_hook) (sf);
w->current_matrix->buffer = b;
w->current_matrix->begv = BUF_BEGV (b);
w->current_matrix->zv = BUF_ZV (b);
}
-
+
update_mode_lines = 0;
windows_or_buffers_changed = 0;
}
w->last_cursor = w->cursor;
w->last_cursor_off_p = w->cursor_off_p;
if (w == XWINDOW (selected_window))
- w->last_point = BUF_PT (b);
+ w->last_point = make_number (BUF_PT (b));
else
- w->last_point = XMARKER (w->pointm)->charpos;
+ w->last_point = make_number (XMARKER (w->pointm)->charpos);
}
}
if (SINGLE_BYTE_CHAR_P (c))
return (dp->contents[c]);
- SPLIT_NON_ASCII_CHAR (c, code[0], code[1], code[2]);
- if (code[0] != CHARSET_COMPOSITION)
- {
- if (code[1] < 32)
- code[1] = -1;
- else if (code[2] < 32)
- code[2] = -1;
- }
+ SPLIT_CHAR (c, code[0], code[1], code[2]);
+ if (code[1] < 32)
+ code[1] = -1;
+ else if (code[2] < 32)
+ code[2] = -1;
/* Here, the possible range of code[0] (== charset ID) is
128..max_charset. Since the top level char table contains data
frames. */
if (row->displays_text_p)
while (glyph < end
- && !glyph->object
+ && INTEGERP (glyph->object)
&& glyph->charpos < 0)
{
x += glyph->pixel_width;
}
while (glyph < end
- && glyph->object
+ && !INTEGERP (glyph->object)
&& (!BUFFERP (glyph->object)
|| glyph->charpos < pt_old))
{
/* Run window scroll functions, if any, for WINDOW with new window
- start STARTP. Sets the window start of WINDOW to that position. */
+ start STARTP. Sets the window start of WINDOW to that position.
+
+ We assume that the window's buffer is really current. */
static INLINE struct text_pos
run_window_scroll_functions (window, startp)
{
struct window *w = XWINDOW (window);
SET_MARKER_FROM_TEXT_POS (w->start, startp);
-
+
+ if (current_buffer != XBUFFER (w->buffer))
+ abort ();
+
if (!NILP (Vwindow_scroll_functions))
{
run_hook_with_args_2 (Qwindow_scroll_functions, window,
make_number (CHARPOS (startp)));
SET_TEXT_POS_FROM_MARKER (startp, w->start);
+ /* In case the hook functions switch buffers. */
+ if (current_buffer != XBUFFER (w->buffer))
+ set_buffer_internal_1 (XBUFFER (w->buffer));
}
return startp;
matrix = w->desired_matrix;
row = MATRIX_ROW (matrix, w->cursor.vpos);
- /* If row->y == top y of window display area, the window isn't tall
- enough to display a single line. There is nothing we can do
- about it. */
- header_line_height = WINDOW_DISPLAY_HEADER_LINE_HEIGHT (w);
- if (row->y == header_line_height)
- return;
-
- if (MATRIX_ROW_PARTIALLY_VISIBLE_AT_TOP_P (w, row))
+ if (MATRIX_ROW_PARTIALLY_VISIBLE_AT_TOP_P (w, row)
+ /* The row may be partially visible at the top because we
+ already have chosen a vscroll to align the bottom of the
+ row with the bottom of the window. This happens for rows
+ taller than the window. */
+ && row->y + row->height < window_box_height (w))
{
int dy = row->height - row->visible_height;
w->vscroll = 0;
w->cursor.y += dy;
shift_glyph_matrix (w, matrix, 0, matrix->nrows, dy);
}
- else if (MATRIX_ROW_PARTIALLY_VISIBLE_AT_BOTTOM_P (w, row))
+ else if (MATRIX_ROW_PARTIALLY_VISIBLE_AT_BOTTOM_P (w, row)
+ /* The row may be partially visible at the bottom because
+ we chose a vscroll to align the row's top with the
+ window's top. This happens for rows taller than the
+ window. */
+ && row->y > WINDOW_DISPLAY_HEADER_LINE_HEIGHT (w))
{
int dy = - (row->height - row->visible_height);
w->vscroll = dy;
{
struct it it;
struct glyph_row *row;
+
+ /* Handle the case that the window start is out of range. */
+ if (CHARPOS (start_pos) < BEGV)
+ SET_TEXT_POS (start_pos, BEGV, BEGV_BYTE);
+ else if (CHARPOS (start_pos) > ZV)
+ SET_TEXT_POS (start_pos, ZV, ZV_BYTE);
/* Find the start of the continued line. This should be fast
because scan_buffer is fast (newline cache). */
struct it it;
/* Record it now because it's overwritten. */
int current_matrix_up_to_date_p = 0;
- int really_switched_buffer = 0;
int temp_scroll_step = 0;
int count = specpdl_ptr - specpdl;
/* Otherwise set up data on this window; select its buffer and point
value. */
- if (update_mode_line)
- {
- /* Really select the buffer, for the sake of buffer-local
- variables. */
- set_buffer_internal_1 (XBUFFER (w->buffer));
- really_switched_buffer = 1;
- }
- else
- set_buffer_temp (XBUFFER (w->buffer));
+ /* Really select the buffer, for the sake of buffer-local
+ variables. */
+ set_buffer_internal_1 (XBUFFER (w->buffer));
SET_TEXT_POS (opoint, PT, PT_BYTE);
current_matrix_up_to_date_p
/* If someone specified a new starting point but did not insist,
check whether it can be used. */
- if (!NILP (w->optional_new_start))
+ if (!NILP (w->optional_new_start)
+ && CHARPOS (startp) >= BEGV
+ && CHARPOS (startp) <= ZV)
{
w->optional_new_start = Qnil;
/* This takes a mini-buffer prompt into account. */
if (!update_mode_line
|| ! NILP (Vwindow_scroll_functions))
{
- if (!really_switched_buffer)
- {
- set_buffer_temp (old);
- set_buffer_internal_1 (XBUFFER (w->buffer));
- really_switched_buffer = 1;
- }
-
update_mode_line = 1;
w->update_mode_line = Qt;
startp = run_window_scroll_functions (window, startp);
/* Point has moved forward. */
int last_y = window_text_bottom_y (w) - this_scroll_margin;
- while ((MATRIX_ROW_END_CHARPOS (row) < PT
- /* The end position of a row equals the start
- position of the next row. If PT is there, we
- would rather display it in the next line, except
- when this line ends in ZV. */
- || (MATRIX_ROW_END_CHARPOS (row) == PT
- && (MATRIX_ROW_ENDS_IN_MIDDLE_OF_CHAR_P (row)
- || !row->ends_at_zv_p)))
+ while (MATRIX_ROW_END_CHARPOS (row) < PT
&& MATRIX_ROW_BOTTOM_Y (row) < last_y)
{
xassert (row->enabled_p);
++row;
}
+ /* The end position of a row equals the start position of
+ the next row. If PT is there, we would rather display it
+ in the next line. Exceptions are when the row ends in
+ the middle of a character, or ends in ZV. */
+ if (MATRIX_ROW_BOTTOM_Y (row) < last_y
+ && MATRIX_ROW_END_CHARPOS (row) == PT
+ && !MATRIX_ROW_ENDS_IN_MIDDLE_OF_CHAR_P (row)
+ && !row->ends_at_zv_p)
+ {
+ xassert (row->enabled_p);
+ ++row;
+ }
+
/* If within the scroll margin, scroll. Note that
MATRIX_ROW_BOTTOM_Y gives the pixel position at which the
next line would be drawn, and that this_scroll_margin can
If point has not moved off frame, accept the results. */
if (!current_matrix_up_to_date_p
/* Don't use try_window_reusing_current_matrix in this case
- because it can have changed the buffer. */
+ because a window scroll function can have changed the
+ buffer. */
|| !NILP (Vwindow_scroll_functions)
|| MINI_WINDOW_P (w)
|| !try_window_reusing_current_matrix (w))
/* Redisplay the mode line. Select the buffer properly for that. */
if (!update_mode_line)
{
- if (!really_switched_buffer)
- {
- set_buffer_temp (old);
- set_buffer_internal_1 (XBUFFER (w->buffer));
- really_switched_buffer = 1;
- }
update_mode_line = 1;
w->update_mode_line = Qt;
}
make_cursor_line_fully_visible (w);
+ done:
+
SET_TEXT_POS_FROM_MARKER (startp, w->start);
w->start_at_line_beg = ((CHARPOS (startp) == BEGV
|| FETCH_BYTE (BYTEPOS (startp) - 1) == '\n')
? Qt : Qnil);
- done:
-
/* Display the mode line, if we must. */
if ((update_mode_line
/* If window not full width, must redo its mode line
&& (WINDOW_WANTS_MODELINE_P (w)
|| WINDOW_WANTS_HEADER_LINE_P (w)))
{
+ Lisp_Object old_selected_frame;
+
+ old_selected_frame = selected_frame;
+
+ XSETFRAME (selected_frame, f);
display_mode_lines (w);
+ selected_frame = old_selected_frame;
/* If mode line height has changed, arrange for a thorough
immediate redisplay using the correct mode line height. */
/* Restore current_buffer and value of point in it. */
TEMP_SET_PT_BOTH (CHARPOS (opoint), BYTEPOS (opoint));
- if (really_switched_buffer)
- set_buffer_internal_1 (old);
- else
- set_buffer_temp (old);
+ set_buffer_internal_1 (old);
TEMP_SET_PT_BOTH (CHARPOS (lpoint), BYTEPOS (lpoint));
unbind_to (count, Qnil);
struct glyph_row *start_row;
int start_vpos, min_y, max_y;
- /* Right now this function doesn't handle terminal frames. */
- if (!FRAME_WINDOW_P (f))
+
+ if (/* This function doesn't handle terminal frames. */
+ !FRAME_WINDOW_P (f)
+ /* Don't try to reuse the display if windows have been split
+ or such. */
+ || windows_or_buffers_changed)
return 0;
/* Can't do this if region may have changed. */
run.current_y = first_row_y;
run.desired_y = it.current_y;
run.height = it.last_visible_y - it.current_y;
- if (run.height > 0)
+ if (run.height > 0
+ && run.current_y != run.desired_y)
{
update_begin (f);
rif->update_window_begin_hook (w);
while (window_row < window_row_end)
{
int area;
+
for (area = LEFT_MARGIN_AREA; area <= LAST_AREA; ++area)
frame_row->glyphs[area] = window_row->glyphs[area];
+
+ /* Disable frame rows whose corresponding window rows have
+ been disabled in try_window_id. */
+ if (!window_row->enabled_p)
+ frame_row->enabled_p = 0;
+
++window_row, ++frame_row;
}
}
only if buffer has really changed. The reason is that the gap is
initially at Z for freshly visited files. The code below would
set end_unchanged to 0 in that case. */
- if (MODIFF > SAVE_MODIFF)
+ if (MODIFF > SAVE_MODIFF
+ /* This seems to happen sometimes after saving a buffer. */
+ || BEG_UNCHANGED + END_UNCHANGED > Z_BYTE)
{
if (GPT - BEG < BEG_UNCHANGED)
BEG_UNCHANGED = GPT - BEG;
if (Z - GPT < END_UNCHANGED)
END_UNCHANGED = Z - GPT;
}
-
+
/* If window starts after a line end, and the last change is in
front of that newline, then changes don't affect the display.
- This case happens with stealth-fontification. */
+ This case happens with stealth-fontification. Note that although
+ the display is unchanged, glyph positions in the matrix have to
+ be adjusted, of course. */
row = MATRIX_ROW (w->current_matrix, XFASTINT (w->window_end_vpos));
if (CHARPOS (start) > BEGV
&& Z - END_UNCHANGED < CHARPOS (start) - 1
&& FETCH_BYTE (BYTEPOS (start) - 1) == '\n'
&& PT < MATRIX_ROW_END_CHARPOS (row))
{
- /* We have to update window end positions because the buffer's
- size has changed. */
+ struct glyph_row *r0 = MATRIX_FIRST_TEXT_ROW (current_matrix);
+ int delta = CHARPOS (start) - MATRIX_ROW_START_CHARPOS (r0);
+
+ if (delta)
+ {
+ struct glyph_row *r1 = MATRIX_BOTTOM_TEXT_ROW (current_matrix, w);
+ int delta_bytes = BYTEPOS (start) - MATRIX_ROW_START_BYTEPOS (r0);
+
+ increment_matrix_positions (w->current_matrix,
+ MATRIX_ROW_VPOS (r0, current_matrix),
+ MATRIX_ROW_VPOS (r1, current_matrix),
+ delta, delta_bytes);
+ }
+
+#if 0 /* If changes are all in front of the window start, the
+ distance of the last displayed glyph from Z hasn't
+ changed. */
w->window_end_pos
= make_number (Z - MATRIX_ROW_END_CHARPOS (row));
w->window_end_bytepos
- = make_number (Z_BYTE - MATRIX_ROW_END_BYTEPOS (row));
+ = Z_BYTE - MATRIX_ROW_END_BYTEPOS (row);
+#endif
+
return 1;
}
w->window_end_pos
= make_number (Z - MATRIX_ROW_END_CHARPOS (row));
w->window_end_bytepos
- = make_number (Z_BYTE - MATRIX_ROW_END_BYTEPOS (row));
+ = Z_BYTE - MATRIX_ROW_END_BYTEPOS (row);
return 1;
}
mentioned, this is not a frequent case. */
if (w->cursor.vpos < 0)
{
- int last_y = min (it.last_visible_y, it.last_visible_y + dy);
-
/* Cursor in unchanged rows at the top? */
if (PT < CHARPOS (start_pos)
&& last_unchanged_at_beg_row)
/* Scroll the display. Do it before changing the current matrix so
that xterm.c doesn't get confused about where the cursor glyph is
found. */
- if (dy)
+ if (dy && run.height)
{
update_begin (f);
/* Adjust buffer positions in reused rows. */
if (delta)
- increment_glyph_matrix_buffer_positions (current_matrix,
- first_unchanged_at_end_vpos + dvpos,
- bottom_vpos, delta, delta_bytes);
+ increment_matrix_positions (current_matrix,
+ first_unchanged_at_end_vpos + dvpos,
+ bottom_vpos, delta, delta_bytes);
/* Adjust Y positions. */
if (dy)
/* Dump the contents of glyph matrix MATRIX on stderr. If
WITH_GLYPHS_P is non-zero, dump glyph contents as well. */
-void
+static void
dump_glyph_matrix (matrix, with_glyphs_p)
struct glyph_matrix *matrix;
int with_glyphs_p;
row = MATRIX_ROW (matrix, vpos);
- fprintf (stderr, "Row Start End Used oEI><O\\CTZF X Y W\n");
+ fprintf (stderr, "Row Start End Used oEI><O\\CTZFes X Y W\n");
fprintf (stderr, "=============================================\n");
- fprintf (stderr, "%3d %5d %5d %4d %1.1d%1.1d%1.1d%1.1d%1.1d%1.1d%1.1d%1.1d%1.1d%1.1d%1.1d %4d %4d %4d\n",
+ fprintf (stderr, "%3d %5d %5d %4d %1.1d%1.1d%1.1d%1.1d%1.1d%1.1d%1.1d%1.1d%1.1d%1.1d%1.1d%1.1d%1.1d %4d %4d %4d\n",
row - matrix->rows,
MATRIX_ROW_START_CHARPOS (row),
MATRIX_ROW_END_CHARPOS (row),
row->displays_text_p,
row->ends_at_zv_p,
row->fill_line_p,
+ row->ends_in_middle_of_char_p,
+ row->starts_in_middle_of_char_p,
row->x,
row->y,
row->pixel_width);
if (glyph < glyph_end)
{
- fprintf (stderr, " Glyph Type Pos W Code C Face LR\n");
+ fprintf (stderr, " Glyph Type Pos O W Code C Face LR\n");
prev_had_glyphs_p = 1;
}
else
if (glyph->type == CHAR_GLYPH)
{
fprintf (stderr,
- " %5d %4c %6d %3d 0x%05x %c %4d %1.1d%1.1d\n",
+ " %5d %4c %6d %c %3d 0x%05x %c %4d %1.1d%1.1d\n",
glyph - row->glyphs[TEXT_AREA],
'C',
glyph->charpos,
+ (BUFFERP (glyph->object)
+ ? 'B'
+ : (STRINGP (glyph->object)
+ ? 'S'
+ : '-')),
glyph->pixel_width,
- glyph->u.ch.code,
- (glyph->u.ch.code < 0x80 && glyph->u.ch.code >= ' '
- ? glyph->u.ch.code
+ glyph->u.ch,
+ (glyph->u.ch < 0x80 && glyph->u.ch >= ' '
+ ? glyph->u.ch
: '.'),
- glyph->u.ch.face_id,
+ glyph->face_id,
glyph->left_box_line_p,
glyph->right_box_line_p);
}
else if (glyph->type == STRETCH_GLYPH)
{
fprintf (stderr,
- " %5d %4c %6d %3d 0x%05x %c %4d %1.1d%1.1d\n",
+ " %5d %4c %6d %c %3d 0x%05x %c %4d %1.1d%1.1d\n",
glyph - row->glyphs[TEXT_AREA],
'S',
glyph->charpos,
+ (BUFFERP (glyph->object)
+ ? 'B'
+ : (STRINGP (glyph->object)
+ ? 'S'
+ : '-')),
glyph->pixel_width,
0,
'.',
- glyph->u.stretch.face_id,
+ glyph->face_id,
glyph->left_box_line_p,
glyph->right_box_line_p);
}
else if (glyph->type == IMAGE_GLYPH)
{
fprintf (stderr,
- " %5d %4c %6d %3d 0x%05x %c %4d %1.1d%1.1d\n",
+ " %5d %4c %6d %c %3d 0x%05x %c %4d %1.1d%1.1d\n",
glyph - row->glyphs[TEXT_AREA],
'I',
glyph->charpos,
+ (BUFFERP (glyph->object)
+ ? 'B'
+ : (STRINGP (glyph->object)
+ ? 'S'
+ : '-')),
glyph->pixel_width,
- glyph->u.img.id,
+ glyph->u.img_id,
'.',
- glyph->u.img.face_id,
+ glyph->face_id,
glyph->left_box_line_p,
glyph->right_box_line_p);
}
Shows contents of glyph row structures. With non-nil optional\n\
parameter WITH-GLYPHS-P, dump glyphs as well.")
(with_glyphs_p)
+ Lisp_Object with_glyphs_p;
{
struct window *w = XWINDOW (selected_window);
struct buffer *buffer = XBUFFER (w->buffer);
0, 0, "", "")
()
{
- struct glyph_matrix *m = (XWINDOW (selected_frame->tool_bar_window)
+ struct frame *sf = SELECTED_FRAME ();
+ struct glyph_matrix *m = (XWINDOW (sf->tool_bar_window)
->current_matrix);
dump_glyph_row (m, 0, 1);
return Qnil;
trace_redisplay_p = !trace_redisplay_p;
return Qnil;
}
-
+
+
+DEFUN ("trace-to-stderr", Ftrace_to_stderr, Strace_to_stderr, 1, 1, "",
+ "Print STRING to stderr.")
+ (string)
+ Lisp_Object string;
+{
+ CHECK_STRING (string, 0);
+ fprintf (stderr, "%s", XSTRING (string)->data);
+ return Qnil;
+}
#endif /* GLYPH_DEBUG */
/* Get the truncation glyphs. */
truncate_it = *it;
- truncate_it.charset = -1;
truncate_it.current_x = 0;
truncate_it.face_id = DEFAULT_FACE_ID;
truncate_it.glyph_row = &scratch_glyph_row;
truncate_it.glyph_row->used[TEXT_AREA] = 0;
CHARPOS (truncate_it.position) = BYTEPOS (truncate_it.position) = -1;
- truncate_it.object = 0;
+ truncate_it.object = make_number (0);
produce_special_glyphs (&truncate_it, IT_TRUNCATION);
/* Overwrite glyphs from IT with truncation glyphs. */
for (i = 0; i < row->used[area]; ++i)
row->hash = ((((row->hash << 4) + (row->hash >> 24)) & 0x0fffffff)
+ row->glyphs[area][i].u.val
+ + row->glyphs[area][i].face_id
+ + row->glyphs[area][i].padding_p
+ (row->glyphs[area][i].type << 2));
it->max_ascent = it->max_descent = 0;
/* Append one space to the glyph row of iterator IT if doing a
window-based redisplay. DEFAULT_FACE_P non-zero means let the
space have the default face, otherwise let it have the same face as
- IT->face_id.
+ IT->face_id. Value is non-zero if a space was added.
This function is called to make sure that there is always one glyph
at the end of a glyph row that the cursor can be set on under
At the same time this space let's a nicely handle clearing to the
end of the line if the row ends in italic text. */
-static void
+static int
append_space (it, default_face_p)
struct it *it;
int default_face_p;
struct text_pos saved_pos;
int saved_what = it->what;
int saved_face_id = it->face_id;
- int saved_charset = it->charset;
Lisp_Object saved_object;
+ struct face *face;
saved_object = it->object;
saved_pos = it->position;
it->what = IT_CHARACTER;
bzero (&it->position, sizeof it->position);
- it->object = 0;
+ it->object = make_number (0);
it->c = ' ';
it->len = 1;
- it->charset = CHARSET_ASCII;
if (default_face_p)
it->face_id = DEFAULT_FACE_ID;
- if (it->multibyte_p)
- it->face_id = FACE_FOR_CHARSET (it->f, it->face_id, CHARSET_ASCII);
- else
- it->face_id = FACE_FOR_CHARSET (it->f, it->face_id, -1);
+ face = FACE_FROM_ID (it->f, it->face_id);
+ it->face_id = FACE_FOR_CHAR (it->f, face, 0);
PRODUCE_GLYPHS (it);
it->position = saved_pos;
it->what = saved_what;
it->face_id = saved_face_id;
- it->charset = saved_charset;
+ return 1;
}
}
+
+ return 0;
}
in the text area has to be drawn to the end of the text area. */
it->glyph_row->fill_line_p = 1;
- /* If current charset of IT is not ASCII, make sure we have the
- ASCII face. This will be automatically undone the next time
- get_next_display_element returns a character from a different
- charset. Note that the charset will always be ASCII in unibyte
- text. */
- if (it->charset != CHARSET_ASCII)
+ /* If current character of IT is not ASCII, make sure we have the
+ ASCII face. This will be automatically undone the next time
+ get_next_display_element returns a multibyte character. Note
+ that the character will always be single byte in unibyte text. */
+ if (!SINGLE_BYTE_CHAR_P (it->c))
{
- it->charset = CHARSET_ASCII;
- it->face_id = FACE_FOR_CHARSET (f, it->face_id, CHARSET_ASCII);
+ it->face_id = FACE_FOR_CHAR (f, face, 0);
}
if (FRAME_WINDOW_P (f))
if (it->glyph_row->used[TEXT_AREA] == 0)
{
it->glyph_row->glyphs[TEXT_AREA][0] = space_glyph;
- it->glyph_row->glyphs[TEXT_AREA][0].u.ch.face_id = it->face_id;
+ it->glyph_row->glyphs[TEXT_AREA][0].face_id = it->face_id;
it->glyph_row->used[TEXT_AREA] = 1;
}
}
it->what = IT_CHARACTER;
bzero (&it->position, sizeof it->position);
- it->object = 0;
+ it->object = make_number (0);
it->c = ' ';
it->len = 1;
/* Skip over the space glyph inserted to display the
cursor at the end of a line. */
if (glyph->type == CHAR_GLYPH
- && glyph->u.ch.code == ' '
- && glyph->object == 0)
+ && glyph->u.ch == ' '
+ && INTEGERP (glyph->object))
--glyph;
/* If last glyph is a space or stretch, and it's trailing
&& BUFFERP (glyph->object)
&& (glyph->type == STRETCH_GLYPH
|| (glyph->type == CHAR_GLYPH
- && glyph->u.ch.code == ' '))
+ && glyph->u.ch == ' '))
&& trailing_whitespace_p (glyph->charpos))
{
- int face_id = lookup_named_face (f, Qtrailing_whitespace,
- CHARSET_ASCII);
+ int face_id = lookup_named_face (f, Qtrailing_whitespace, 0);
while (glyph >= start
&& BUFFERP (glyph->object)
&& (glyph->type == STRETCH_GLYPH
|| (glyph->type == CHAR_GLYPH
- && glyph->u.ch.code == ' ')))
- {
- if (glyph->type == STRETCH_GLYPH)
- glyph->u.stretch.face_id = face_id;
- else
- glyph->u.ch.face_id = face_id;
- --glyph;
- }
+ && glyph->u.ch == ' ')))
+ (glyph--)->face_id = face_id;
}
}
}
row->start = it->current;
row->continuation_lines_width = it->continuation_lines_width;
row->displays_text_p = 1;
+ row->starts_in_middle_of_char_p = it->starts_in_middle_of_char_p;
+ it->starts_in_middle_of_char_p = 0;
/* Arrange the overlays nicely for our purposes. Usually, we call
display_line on only one line at a time, in which case this
{
int n_glyphs_before, hpos_before, x_before;
int x, i, nglyphs;
+ int ascent, descent, phys_ascent, phys_descent;
/* Retrieve the next thing to display. Value is zero if end of
buffer reached. */
if (!get_next_display_element (it))
{
/* Maybe add a space at the end of this line that is used to
- display the cursor there under X. */
- append_space (it, 1);
-
- /* The position -1 below indicates a blank line not
- corresponding to any text, as opposed to an empty line
- corresponding to a line end. */
- if (row->used[TEXT_AREA] <= 1)
+ display the cursor there under X. Set the charpos of the
+ first glyph of blank lines not corresponding to any text
+ to -1. */
+ if ((append_space (it, 1) && row->used[TEXT_AREA] == 1)
+ || row->used[TEXT_AREA] == 0)
{
row->glyphs[TEXT_AREA]->charpos = -1;
row->displays_text_p = 0;
generates glyphs in `row' (which is IT->glyph_row). */
n_glyphs_before = row->used[TEXT_AREA];
x = it->current_x;
+
+ /* Remember the line height so far in case the next element doesn't
+ fit on the line. */
+ if (!it->truncate_lines_p)
+ {
+ ascent = it->max_ascent;
+ descent = it->max_descent;
+ phys_ascent = it->max_phys_ascent;
+ phys_descent = it->max_phys_descent;
+ }
+
PRODUCE_GLYPHS (it);
/* If this display element was in marginal areas, continue with
|| (new_x == it->last_visible_x
&& FRAME_WINDOW_P (it->f)))
{
- /* Current glyph fits exactly on the line. We
- must continue the line because we can't draw
- the cursor after the glyph. */
+ /* Current glyph is the only one on the line or
+ fits exactly on the line. We must continue
+ the line because we can't draw the cursor
+ after the glyph. */
row->continued_p = 1;
it->current_x = new_x;
it->continuation_lines_width += new_x;
if (i == nglyphs - 1)
set_iterator_to_next (it);
}
+ else if (CHAR_GLYPH_PADDING_P (*glyph)
+ && !FRAME_WINDOW_P (it->f))
+ {
+ /* A padding glyph that doesn't fit on this line.
+ This means the whole character doesn't fit
+ on the line. */
+ row->used[TEXT_AREA] = n_glyphs_before;
+
+ /* Fill the rest of the row with continuation
+ glyphs like in 20.x. */
+ while (row->glyphs[TEXT_AREA] + row->used[TEXT_AREA]
+ < row->glyphs[1 + TEXT_AREA])
+ produce_special_glyphs (it, IT_CONTINUATION);
+
+ row->continued_p = 1;
+ it->current_x = x_before;
+ it->continuation_lines_width += x_before;
+
+ /* Restore the height to what it was before the
+ element not fitting on the line. */
+ it->max_ascent = ascent;
+ it->max_descent = descent;
+ it->max_phys_ascent = phys_ascent;
+ it->max_phys_descent = phys_descent;
+ }
else
{
/* Display element draws past the right edge of
it->current_x = x;
it->continuation_lines_width += x;
+ if (nglyphs > 1 && i > 0)
+ {
+ row->ends_in_middle_of_char_p = 1;
+ it->starts_in_middle_of_char_p = 1;
+ }
+
+ /* Restore the height to what it was before the
+ element not fitting on the line. */
+ it->max_ascent = ascent;
+ it->max_descent = descent;
+ it->max_phys_ascent = phys_ascent;
+ it->max_phys_descent = phys_descent;
}
+
break;
}
else if (new_x > it->first_visible_x)
/* Remember the position at which this line ends. */
row->end = it->current;
- /* Maybe set the cursor. If you change this, it's probably a good
- idea to also change the code in redisplay_window for cursor
- movement in an unchanged window. */
+ /* Maybe set the cursor. */
if (it->w->cursor.vpos < 0
&& PT >= MATRIX_ROW_START_CHARPOS (row)
- && MATRIX_ROW_END_CHARPOS (row) >= PT
- && !(MATRIX_ROW_END_CHARPOS (row) == PT
- && (MATRIX_ROW_ENDS_IN_MIDDLE_OF_CHAR_P (row)
- || !row->ends_at_zv_p)))
- set_cursor_from_row (it->w, row, it->w->desired_matrix, 0, 0, 0, 0);
+ && PT <= MATRIX_ROW_END_CHARPOS (row))
+ {
+ /* Also see redisplay_window, case cursor movement in unchanged
+ window. */
+ if (MATRIX_ROW_END_CHARPOS (row) == PT
+ && !MATRIX_ROW_ENDS_IN_MIDDLE_OF_CHAR_P (row)
+ && !row->ends_at_zv_p)
+ ;
+ else
+ set_cursor_from_row (it->w, row, it->w->desired_matrix, 0, 0, 0, 0);
+ }
/* Highlight trailing whitespace. */
if (!NILP (Vshow_trailing_whitespace))
#ifdef USE_X_TOOLKIT
xassert (!FRAME_WINDOW_P (f));
- init_iterator (&it, w, -1, -1, f->desired_matrix->rows, MODE_LINE_FACE_ID);
+ init_iterator (&it, w, -1, -1, f->desired_matrix->rows, MENU_FACE_ID);
it.first_visible_x = 0;
it.last_visible_x = FRAME_WINDOW_WIDTH (f) * CANON_X_UNIT (f);
#else /* not USE_X_TOOLKIT */
xassert (WINDOWP (f->menu_bar_window));
menu_w = XWINDOW (f->menu_bar_window);
init_iterator (&it, menu_w, -1, -1, menu_w->desired_matrix->rows,
- MODE_LINE_FACE_ID);
+ MENU_FACE_ID);
it.first_visible_x = 0;
it.last_visible_x = FRAME_WINDOW_WIDTH (f) * CANON_X_UNIT (f);
}
/* This is a TTY frame, i.e. character hpos/vpos are used as
pixel x/y. */
init_iterator (&it, w, -1, -1, f->desired_matrix->rows,
- MODE_LINE_FACE_ID);
+ MENU_FACE_ID);
it.first_visible_x = 0;
it.last_visible_x = FRAME_WIDTH (f);
}
/* The EOL conversion we are using. */
Lisp_Object eoltype;
- val = coding_system;
+ val = Fget (coding_system, Qcoding_system);
- if (NILP (val)) /* Not yet decided. */
+ if (!VECTORP (val)) /* Not yet decided. */
{
if (multibyte)
*buf++ = '-';
eolvalue = Fget (coding_system, Qeol_type);
- while (!NILP (val) && SYMBOLP (val))
- {
- val = Fget (val, Qcoding_system);
- if (NILP (eolvalue))
- eolvalue = Fget (val, Qeol_type);
- }
-
if (multibyte)
*buf++ = XFASTINT (XVECTOR (val)->contents[1]);
else if (INTEGERP (eoltype)
&& CHAR_VALID_P (XINT (eoltype), 0))
{
- unsigned char work[4];
-
- eol_str_len = CHAR_STRING (XINT (eoltype), work, eol_str);
+ eol_str = (unsigned char *) alloca (MAX_MULTIBYTE_LENGTH);
+ eol_str_len = CHAR_STRING (XINT (eoltype), eol_str);
}
else
{
static char *
decode_mode_spec (w, c, field_width, precision)
struct window *w;
- register char c;
+ register int c;
int field_width, precision;
{
Lisp_Object obj;
w->base_line_pos = Qnil;
/* If the buffer is very big, don't waste time. */
- if (BUF_ZV (b) - BUF_BEGV (b) > line_number_display_limit)
+ if (INTEGERP (Vline_number_display_limit)
+ && BUF_ZV (b) - BUF_BEGV (b) > XINT (Vline_number_display_limit))
{
w->base_line_pos = Qnil;
w->base_line_number = Qnil;
while (pad-- > 0)
*p++ = ' ';
*p++ = '?';
- *p = '?';
+ *p++ = '?';
+ *p = '\0';
return decode_mode_spec_buf;
}
}
start, it, field_width, precision, max_x, multibyte)
unsigned char *string;
Lisp_Object lisp_string;
+ Lisp_Object face_string;
+ int face_string_pos;
int start;
struct it *it;
int field_width, precision, max_x;
defsubr (&Sdump_glyph_row);
defsubr (&Sdump_tool_bar_row);
defsubr (&Strace_redisplay_toggle);
+ defsubr (&Strace_to_stderr);
#endif
staticpro (&Qmenu_bar_update_hook);
staticpro (&Qinhibit_point_motion_hooks);
Qinhibit_point_motion_hooks = intern ("inhibit-point-motion-hooks");
- staticpro (&Qdisplay);
+ QCdata = intern (":data");
+ staticpro (&QCdata);
Qdisplay = intern ("display");
- staticpro (&Qleft_margin);
+ staticpro (&Qdisplay);
Qspace_width = intern ("space-width");
staticpro (&Qspace_width);
- Qheight = intern ("height");
- staticpro (&Qheight);
Qraise = intern ("raise");
staticpro (&Qraise);
Qspace = intern ("space");
staticpro (&Qspace);
+ Qmargin = intern ("margin");
+ staticpro (&Qmargin);
Qleft_margin = intern ("left-margin");
- staticpro (&Qright_margin);
+ staticpro (&Qleft_margin);
Qright_margin = intern ("right-margin");
+ staticpro (&Qright_margin);
Qalign_to = intern ("align-to");
staticpro (&Qalign_to);
QCalign_to = intern (":align-to");
staticpro (&QCalign_to);
- Qwidth = intern ("width");
- staticpro (&Qwidth);
Qrelative_width = intern ("relative-width");
staticpro (&Qrelative_width);
QCrelative_width = intern (":relative-width");
staticpro (&QCeval);
Qwhen = intern ("when");
staticpro (&Qwhen);
+ QCfile = intern (":file");
+ staticpro (&QCfile);
Qfontified = intern ("fontified");
staticpro (&Qfontified);
Qfontification_functions = intern ("fontification-functions");
staticpro (&Qtrailing_whitespace);
Qimage = intern ("image");
staticpro (&Qimage);
+ Qmessage_truncate_lines = intern ("message-truncate-lines");
+ staticpro (&Qmessage_truncate_lines);
- staticpro (&last_arrow_position);
- staticpro (&last_arrow_string);
last_arrow_position = Qnil;
last_arrow_string = Qnil;
+ staticpro (&last_arrow_position);
+ staticpro (&last_arrow_string);
echo_buffer[0] = echo_buffer[1] = Qnil;
staticpro (&echo_buffer[0]);
If this is zero, point is always centered after it moves off frame.");
DEFVAR_INT ("scroll-conservatively", &scroll_conservatively,
- "*Scroll up to this many lines, to bring point back on screen.");
+ "*Scroll up to this many lines, to bring point back on screen.\n\
+A value of zero means to scroll the text to center point vertically\n\
+in the window.");
scroll_conservatively = 0;
DEFVAR_INT ("scroll-margin", &scroll_margin,
"*Non-nil means use inverse video for the mode line.");
mode_line_inverse_video = 1;
- DEFVAR_INT ("line-number-display-limit", &line_number_display_limit,
+ DEFVAR_LISP ("line-number-display-limit", &Vline_number_display_limit,
"*Maximum buffer size for which line number should be displayed.\n\
If the buffer is bigger than this, the line number does not appear\n\
-in the mode line.");
- line_number_display_limit = 1000000;
+in the mode line. A value of nil means no limit.");
+ Vline_number_display_limit = Qnil;
- DEFVAR_INT ("line-number-display-limit-width", &line_number_display_limit_width,
+ DEFVAR_INT ("line-number-display-limit-width",
+ &line_number_display_limit_width,
"*Maximum line width (in characters) for line number display.\n\
If the average length of the lines near point is bigger than this, then the\n\
line number may be omitted from the mode line.");
If an integer, it specifies a number of lines.\n\
If nil, don't resize.");
Vmax_mini_window_height = make_float (0.25);
+
+ DEFVAR_BOOL ("cursor-in-non-selected-windows",
+ &cursor_in_non_selected_windows,
+ "*Non-nil means display a hollow cursor in non-selected windows.\n\
+Nil means don't display a cursor there.");
+ cursor_in_non_selected_windows = 1;
+
+ DEFVAR_BOOL ("automatic-hscrolling", &automatic_hscrolling_p,
+ "*Non-nil means scroll the display automatically to make point visible.");
+ automatic_hscrolling_p = 1;
+
+ DEFVAR_LISP ("image-types", &Vimage_types,
+ "List of supported image types.\n\
+Each element of the list is a symbol for a supported image type.");
+ Vimage_types = Qnil;
+
+ DEFVAR_BOOL ("message-truncate-lines", &message_truncate_lines,
+ "If non-nil, messages are truncated instead of resizing the echo area.\n\
+Bind this around calls to `message' to let it take effect.");
+ message_truncate_lines = 0;
}